Otto wbiskopf



Sept. 25, 1928.

o. WEISKOPF TENS CARRYING DEVICE FOR CALCULATING MACHINES Filed May 1, 1926 P Sept.'25,1928. I 1,685,346 UNITED STATES PATENT OFFICE.

OTTO WEISKOPF, OF EBFUBT, GERMANY. TENS-CARRYING DEVICE FOB CALCULATING MACHINES;

Application nled'layl, 1926, Serial No. 106,110, and in Germany Kay 5,1925.

My invention relates to calculating mawith notches on these wheels. 63 is the drivchines and more especially to a single-stage ing wheel which can be displaced on a shaft tens-carrying devicewhich-is direc oper-- 28 by means of a pin 7 5' at the denominaated without special reparation by t e tens tional slide 7 5. The driving wheel 63 meshes 6 tooth of each dial. w eel, but in whichthe with pinions 64: on the dial wheels 61, each parts of the tens-carrying device are not in inion having ten teeth; Opposite the pinconstant mesh with the pinions of the dial lOIlS single teeth 65 are provided on each dial wheels. The new'device is particularly suitwheel. 68 are rocking levers fulcrumed on a able for a calculating machine having a sinpin 69 in the casing 1, and 66 aretoothed sec- 65 gle key board in which by depressing the nutors adapted to oscillate on pins 67 in the meral keys the items indicated'are directly levers 68. Each sector is adapted to mesh transferred to the counter without actuating with the tooth 650i each dial wheel 61, and cranks or levers. at the same timewith the pinion 64 of the .The device should move easily so that it is dial wheel at the left which corresponds to a 7 l5 operated without effort but, on the other higher denomination.

' hand, it should'not be liable to overrun; It Thenumber of sectors 66 and rocking levers is an object of my invention to provide a tens- 68 corresponds to the number of denominacarrying device which combines easy running tionalorders less one for which the mecha-' with reliability. 1 nism is designed. Each segment is free to 75 To'this end I provide toothed sectors for oscillate about its pin 67 between shoulders connecting the singletooth of one dial wheel 76 and 7 7 .of the levers .68. The downward with the pinion of the adjacent dial wheel, motion of the levers 68 is limited by a staand I suspend these sectors for oscillation on tionary bar '70. When the levers are resting rocking levers which are operated by the on this bar, the sectors 66 are not in mesh denominational slide of the machine so as to withthe pinions 64 and the teeth 65.

raise said sectors intoand to lower them out Means are provided for raising an levers of mesh with the teeth and pinions of the 68 to theleft of a given lever when such dial wheels. By this arrangement the seclever is raised while those at the rightof the tors are not held in constant mesh and the lever are not raised. 7 This is effected by pins inner resistance is reduced to a minimum: 71in the levers which are adapted to enter. Checks are provided against overrunning of holes 72 or slots 7 3 in the adjacent lever.

, the sectors, these checks being so arran'g In each pair of adjacent levers, as shown in that the sectors can be oscillated only through Fig. 3, the pins 71 are alternately inserted an angle. corresponding to a single tooth. near the upper and near the lower edge of the 90 When the rocking-levers are lowered into levers, respectively. Each pin 71 projects their initial position, their sectors get out of into the hole 72 or into the slot 7 3 of the admesh with the teeth of the dial wheel teeth jacent lever so that, when a lever 68 is raised, and pinions and are returned to their normal the leverswhich are at the left of the said position by gravity or by means of a light lever, .will be raised with it, whereas the 95 spring. levers at its right will not be raised. In In the drawings afiixed to this specificathis mannerthe tens-carrying device is option and forming part thereof a tens-carryerated correctly for rotation ofthe dial wheelsing device embodying my invention'is illusto the left and to the right. trated diagrammatically by way of example. 7 Arecess 66 is formed in each sector 66 .45 In the drawings above the pin 67, so'that ts upper end s Fig. 1 is an elevation of a portion oi the lighter thanthe lower end, and a bar 7 4 1s evice, partly in section on the line 1- 1 in inserted in this recess so as to prevent osc1l- Fig. 2, J lation of the sectors for more than a single Fig. 2 is a section on the line 2-2 in 1, tooth to the right and the left. Therefore 105 Fig. 3 is a section on the line 3-3 in Fig. 2 the tens-carrying device is limited to a single Figs. 4, 5 and 6 are detail illustrations 0 tooth and overrunning is reliably prevented.

rocking levers. Rocking of the levers 1s efiected by a V- v Referrin to thedrawings, is a stashaped cam at the'rear end of the mom- 'tionary sha mounted in the casing 1- of the inational slide. 7 5 which is a ted to. be no calculating mechanism, 61 are the dial wheels reciprocated on bars 31 by, suits. le mechaand 62 are spring catches which cooperate nism, connected with theta ulator keys, (not modifications will shown), and coupled with the driving wheel 33 by the pin 7 5. Pins 68 at the ends of the levers are engaged by the cam 75". the denominational slide is left into the position corresponding to the first denominational order the cam 7 5 will raise all levers at the left of the denominational slide. Those levers which are released by the cam return to their initial positions by their pins 68 sliding down on the cam 7f at the right, but all levers at the left of the denominational slide will remain in raised position and will keep their sectors (36 engaged with the pinions 64 of the dial wheels.

hen a numeral key is depressed, the denominational slide 75 automatically moves to the right the distance correspondlng to one denominational order, raising the lever 68 which is at its right, and so on for each denominational order,

drop, causing all sectors .66 to be disengaged from the pinions 64 sectors which are out of mesh resume their vertical position under the action of their weighted lower ends, but, as mentioned, springs may be provided for adjusting said sectors.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious occur to a person skilled in the art.

I claim:

1. Single stage tens-carrying device for calculating machines comprising, a denomnected with said denominational slide for inational slide,

until the last lever at" arms mounted below said throwing said sectors into and out of mesh with said pinions and teeth on said dial wheels.

2. Single stage tens-carrying device for calculating machines comprising, a denomdial wheels, a pinion and a single tooth connected with each dial wheel, a rocking lever for each dial Wheel, weighted rocking motion tors forming part of said to connect the single tooth with a pinion of the adjacent dial wheel and pivotally carried on said levers and a cam on said denominational slide adapted to rock said sector-carrying levers.

3. Single stage tens-carrying device for calculating machines comprising, a denominational slide, dial wheels, a pinion and a. single tooth connected with each dial wheel, a rocking lever for each dial Wheel, weighted dial wheels for free rocking motion on said levers, toothed sectors forming part of said arms and adapted to connect the single tooth of one dial pinion of the adjacent dial wheel and pivotally carried on said levers, and a V-shaped cam on said denominational slide adapted to rock said sector-carrying levers. 4

4. Single stage tens-carrying device for calculating machines comprising, a denominational slide, dial wheels, a pinion and a single tooth connected with each dial Wheel, a rocking lever below each dial wheel, a weighted arm mounted on each lever for free rocking motion, a toothed sector forming part of each arm and adapted to connect the single tooth ofone dial wheel with a pinion of the adjacent dial Wheel, means carried on said denominational slide for rockin said levers, and a connection between said evers causing each lever, When raised by said decade slide, to raise the lever on its left but not the lever on its right. I

In testimony whereof I aflix my signature.

OTTO WEISKOPF.

arms and adapted of one dial wheel 

